From 333562544ef1b71a7a4d7ce1ece533bef98ce0da Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Tue, 14 Jan 2025 21:01:26 -0800
Subject: im going to kill myself

attempt to fix hypotrochoid normals

key insight is that multiplying normal by transpose(invert(jacobian)) of
transform should work, but it fucking doesn't
---
 mochie_shadow_caster.cginc | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'mochie_shadow_caster.cginc')

diff --git a/mochie_shadow_caster.cginc b/mochie_shadow_caster.cginc
index 64f6350..0d15d41 100644
--- a/mochie_shadow_caster.cginc
+++ b/mochie_shadow_caster.cginc
@@ -1,5 +1,8 @@
+#include "UnityCG.cginc"
+
 #include "atrix256.cginc"
 #include "gerstner.cginc"
+#include "trochoid_math.cginc"
 
 #ifndef __MOCHIE_SHADOW_CASTER_INC
 #define __MOCHIE_SHADOW_CASTER_INC
@@ -60,6 +63,11 @@ v2f vert (appdata v){
     return (v2f) (0.0 / 0.0);
   }
 #endif
+#if defined(_TROCHOID)
+  {
+    v.vertex.xyz = cyl2_to_troch_map(cyl_to_cyl2_map(cart_to_cyl_map(v.vertex.xyz)));
+  }
+#endif
 #if !defined(_SCROLL) && defined(_GIMMICK_GERSTNER_WATER)
   {
     GerstnerParams p = getGerstnerParams();
-- 
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